diff --git a/docs/bom/transimp.csv b/docs/bom/transimp.csv
index 1404212..8d7ed0b 100644
--- a/docs/bom/transimp.csv
+++ b/docs/bom/transimp.csv
@@ -18,3 +18,4 @@ Pin Header, 1822166, 3, No
 M3 screw 8 mm, 2494521, 4, No
 M3 spacing bolts female-male 8 mm, 1466795, 4, No
 M3 spacing bolts female-female 30 mm, 1466803, 4, No
+Washer M3, 1377496, 1, No